Apparatus for pumping fluid.



0. B. CAMPBELL,'JR. I APPARATUS FOR PUMPING FLUID.

APPLICATION FILED AUG.9. 19l6.

1,22%,61, Patented Apr. 17, 1917.

Ii M1 27 A A E INVENTOR.

05/770 .5. fiam abe/M INC .vmmls FEYERS co,Pnoru-1.rmo.wAsnmcmMn c OSMON B. CAMPBELL, JB., 0 ST. JOSEPH, MISSOURI.

APPARATUS FOR PUMPING- FLUID.

Specification of Letters Patent.

Patented Apr. 1?, 1917.

Continuation of application Serial No. 25,420, filed May 3, 1915. This application filed August 9, 1916. Serial No. 113,947.

To all whom-it may concern:

Be it known that I, OSMON B. CAMPBELL, J r., a citizen of the United States, residing at St. Joseph, in the county of Buchanan and State of Missouri, have invented certain new and useful Improvements in Apparatus for Pumping Fluid; and I do declare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the lettersand figures of reference marked thereon, which form a part of this specification.

My invention relates to an apparatus for pumping fluid, and has for its principal object the utilization of expansive force in a hydro-carbon or like engine and hydrostatic force of the pumped liquid for the etiicient, convenient and economical transmission of liquid.

More particularly my apparatus comprises the utilization of vacuum or partial vacuum resulting from the momentum or impulse that follows each pumping stroke, to draw in liquid to the line or conduit above the pump piston, and utilization of the hydrostatic force of liquid in the line or conduit to return the pump piston and compress an intaken charge in the combustion chamber of the engine cylinder.

In accomplishing these and other objects of the invention, I have provided apparatus, the preferred form of which is illustrated in the accompanying drawings, to which reference is made by reference numerals in the specification.

In the drawings, 1 designates an engine, which may be of any suitable hydro-carbon type, having a two-cycle operation and comprising a cylinder 2 and a piston 3 that divides the interior of the cylinder into an outer supply chamber 4 and an inner combustion chamber 5.

Opening into the outer end of the supply chamber 4 is an intake conduit 6, whereby charges of fuel may be delivered to the supply chamber, and having a back check valve '13; for retaining the charge within the cham- Leading from the outer end of the co1nbustion chamber 5 is a cleaning or scavenging conduit 8, and leading from the outer end of the supply chamber to the outer end of the combustion chamber is a feed conduit 9, through which compressed fluid may pass from the supply to the combustion chamber of the cylinder; the said conduit 9 containing a. back check valve 10 for preventing back flow to the supply chamber.

The engine also includes an ignition de-' vice 12, of any suitable type, and the piston 3 is provided with a baffle 13.

Attached to the inner head 15 of the engine cylinder is a conduit 16, which may GX- tend into a well or to the point from which liquid is to be pumped, and preferably comprises at its inner end a pump cylinder 17, having open communication, through the port 18, with the interior of the conduit 16. In the specific construction shown in the drawings, the conduit 16 has flanges 19 and 20 at its opposite ends, whereby the conduit is attached to the engine and pump cylinder heads.

Extending through stufling boxes 232t on the outer and inner heads of the engine cylinder, and through the engine piston 3, is a rod 25, which is fixed to the engine piston and extends through the pump conduit 16 into the pump cylinder 17, where it is rigidly secured to a. pump piston 26 that operates in the cylinder 17.

The pump piston 26 contains an automatic valve, preferably including the port 27 in the piston and a plug 28 that operates in said port and is adapted for lifting to permit liquid to flow from a Well or source of supply to the inner chamber of the pump cylinder, and is arranged to close to trap liquid within said chamber.

Opening from the conduit 16 is a main 29 that may extend to any suitable point relative to the operative portion of the apparatus, and through which the liquid is conducted to a delivery point, the main being in open communication with the pump conduit, and the entire line of flow through the main and pump conduit being unobstructed, in order to facilitate the outward flow of liquid and permit back flow of the liquid to the pump piston after a functional movement of the piston. The hydrostatic force of the back flowing liquid is utilized to return the pump and engine pistons to effect the admission of a charge of fuel mixture to the supply chamber, and the compression of a previously admitted charge in the combustion chamber of the engine cylinder.

In using the apparatus, liquid having been admitted to the liquid cylinder 17 above the liquid piston 26 and passed to the liquid conduit 16, is forced upward in the said conduit by the piston 26 in said liquid cylinder, which piston receives its motion from its connection by the rod 25 with the power piston 3, which piston is lifted by the combustion and expansion of the gases in the combustion chamber 5. Considerable momentum is imparted to the rising column of liquid in the liquid conduit 16, and said liquid continues to rise in said conduit after the pistons above mentioned have come to rest, and as long as said liquid continues to rise, other liquid enters said liquid cylinder through the inlet valve port 27, and passes to the liquid conduit. When the momentum previously imparted to the liquid in the liquid conduit is spent, and the said liquid comes to rest, the liquid inlet valve 28 closes, said liquid descends in said conduit and in said liquid cylinder against the piston 26 in said liquid cylinder, and forces said piston downward. When said piston 26 descends it draws downward the above mentioned engine piston 3 in the above mentioned engine cylinder 2,by connection with said engine piston by the rod 25, and compresses the charge of combustible mixture in the combustion chamber of the engine. ,When said combustible mixture has been ignited and has burned, upward motion is again imparted, through piston 3, rod 25, and piston 26, to the liquid in the liquid cylinder, and in the liquid conduit by the explosive impulse attending said burning. The engine portion of this machine operates on the well known two-cycle principle, and it is apparent that successive charges of combustible mixture are compressed by the return movement of the pump piston under hydrostatic force of the liquid, and when burned, lift the pistons to impart upward impulses to the liquid column in the conduit, thereby reciprocating the pistons to produce the two-cycle operation of the engine and efiect the pumping.

The foregoing specification and the accompanying drawing show one mechanical arrangement by which the spirit of this invention may be put into practice, and are for the purpose of making clear the operation of the invention and the action of the forces used, and I do not limit the scope of this invention to such particular details of structure.

Having thus described my invention, what I claim as new therein, and desire to secure by Letters-Patent, is

1. In a liquid pumping apparatus, a liquid conduit having a valved inlet near its lower end, a liquid pump, and an engine of the internal combustion, two-cycle type, in such operative relation that an explosion occurring in the combustion chamber of the engine will impart upward motion and impetus to liquid in the conduit, and that gases passed to the combustion chamber of the engine will be compressed therein by the descent of liquid through the liquid conduit into the liquid pump.

2. In a liquid pumping apparatus, a liquid conduit open at its upper end and having a valved inlet near its lower end and comprising a liquid cylinder member at its lower end, a piston in the liquid cylinder, an engine of the two-cycle, internal-combustion type, a piston in the engine cylinder, and a rod connecting said pistons, one end of the liquid cylinder being in communication with the lower portion of the liquid conduit and the other end being open, whereby gases expanding in the engine cylinder impart upward motion to liquid in the liquid conduit and gases passed to said engine cylinder are compressed therein by force of liquid passing down the liquid conduit and into the liquid cylinder against the piston in said liquid cylinder.

8. In a liquid pumping apparatus, an engine of the two-cycle, internal combustion type, comprising a cylinder and a piston, a liquid cylinder open at its lower end, a liquid conduit spacing and attached to said cylinders, the said conduit being in open communication with the liquid cylinder, a piston in the liquid cylinder, a rod extending through said conduit and connecting the engine and liquid pistons, and a check valve controlling flow to the conduit above the liquid piston, the liquid conduit having an opening therein for the discharge of liquid.

4;. In a liquid pumping apparatus, a liquid conduit, an engine of the two-cycle, internal combustion type comprising a cylinder and piston, mounted on said conduit, an open bottom liquid cylinder suspended from said conduit, and having open communication with said conduit at its upper end, a piston, a rod extending through said conduit and connecting the piston in the liquid cylinder with the piston in the engine cylinder, a check valve for passing liquid to the liquid cylinder above the liquid piston,

the said conduit having a discharge opening above the liquid piston.

5. In a liquid pumping apparatus, an engine of tl1e tWotype, comprising cycle, internal combustion a cylinder and a piston, a

liquid conduit having its upper end attached to the cylinder head, a liquid cylinder attached to the low in lower end of said er end of said conduit, the liquid cylinder being open liquid cylinders.

In testimony whereof I afiix my signature.

OSMON B. CAMPBELL, JR.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. G. 

